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Karo-lina-s [1.5K]
3 years ago
8

Evaluate the expression for x=5, y=-3 and z=7 * 7 – 3y – 3z

Mathematics
1 answer:
kobusy [5.1K]3 years ago
7 0

Answer:

-5

Step-by-step explanation:

i tried my best but this is the result

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Jasmine has taken an online boating safety course and is now completing her end-of-course exam. As she answers each question, th
seropon [69]

Answer:

80 questions

Step-by-step explanation:

100%/20%=5%

5×16=80

8 0
3 years ago
Gross worldwide sales in Mattel's Wheels (Hot Wheels) brand was $885.1 million in 2016 and $847 million in 2017. Calculate the a
attashe74 [19]

Answer:

Step-by-step explanation:

Absolute Change = final change in 2017 sales  - initial change in 2016 sales  =  $847,000,000 - $885,100,000 = 38,100,000

Relative Change = (Final - Initial change)/initial change x  100% = 38,100,000/885,100,00 x 100% = 381/8851 x 100% = 0.0430459835 x 100% = 4.30%

6 0
3 years ago
Rationalization<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B6%7D%7B%20%5Csqrt%7B3%7D%20%7D%20" id="TexFormula1" title=" \f
rosijanka [135]

Answer:

2√3

Step-by-step explanation:

To rationalize, we multiply the denominator and numerator by the surd at the base

We have it that;

6/√3 * 1

= 6/√3 * √3/√3

= 6 √3/3 = 2√(3

7 0
3 years ago
Find the difference between8/15 and 2/3 Show all calculations in your final answer.
kherson [118]

Answer:

  • \frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}          

Step-by-step explanation:

  • Let the value of a number 'a' be = 8/15
  • Let the value of a number 'b' be = 2/3

The difference between the two numbers can be calculated by subtracting the numbers

a-b=\frac{8}{15}-\left(\frac{-2}{3}\right)

\mathrm{Remove\:parentheses}:\quad \left(a\right)=a

         =\frac{8}{15}-\frac{-2}{3}

\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}

          =\frac{8}{15}-\left(-\frac{2}{3}\right)

\mathrm{Apply\:rule}\:-\left(-a\right)=a

          =\frac{8}{15}+\frac{2}{3}

\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}

          =\frac{8+10}{15}

          =\frac{18}{15}

\mathrm{Cancel\:the\:common\:factor:}\:3

           =\frac{6}{5}

Thus,

  • \frac{8}{15}-\left(\frac{-2}{3}\right)=\frac{6}{5}                    
3 0
3 years ago
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